Hi Tony,
Welcome to the BH club and congrats on your first build going so well.
Of course you probably know this, but the 600s are going to need sometime on them before they reach their full potential, but once you get there and have a good idea of how it all sounds, maybe you'll consider the peedbal next.
Welcome again,
Jim
Jim Rebman -- recovering audiophile
Equitech balanced power; uRendu, USB processor -> Musette DAC -> 5670 tube buffer -> Finale Audio F138 FFX -> Cain and Cain Abbys near-field).
s.e.x. 2.1 under construction. Want list: Stereomour II
All ICs homemade (speaker and power next)